Hi Dave,I don't have my notebook with me at the moment but I seem to recall measuring about 10 dB of loss over 150 m of cable (consistent with spec, see below). The noise temperature of the front-end is about 150 K with about 30 dB of gain. The cable should add less then 10 K to the total. So I would expect the overall noise temperature to be in the 150-200 K range across the band.
See http://www.mjsales.net/items.asp?FamilyID=747&this_Cat1ID=266&Cat2ID=34&Cat3ID=18 for cable loss.
Rich
